With most tier 1 mobile services charging $100/month or more, this is clearly a no brainer as a second iPhone, an iPhone for the parents/grandparents or kids. Or perhaps you need a “burner iPhone for nefarious purposes. No judgement here. Or maybe you are a developer that needs another phone to try out your apps on? Whatever the reason, it is the equivalent of $25 a month with a free iPhone and it is on Sprint’s MVNO LTE network for better or worse. If you use up the 500MB of data, you can buy more cheaply or just use Wifi. Talk and texting are unlimited.